Question 476054
{{{sqrt(4x-1)+6=9}}}
{{{sqrt(4x-1)=9-6}}}
{{{sqrt(4x-1)=3}}} squaring both sides
{{{4x-1=3^2}}}
{{{4x-1=9}}}
{{{4x=9+1}}}
{{{4x=10}}}
{{{x=10/4}}}
{{{x=2.5}}}
Check {{{sqrt(4*2.5-1)+6=9}}}
{{{sqrt(9)+6=9}}}
{{{3+6=9}}}
{{{9=9}}} correct
Answer: {{{x=2.5}}}